FLUID TRANSMISSION DEVICE

摘要

A fluid transmission device includes a pre-damper 10 that transmits driving force received from a crankshaft 100 to a front cover 20 via first damper springs 14, a mechanism 30 that transmits the driving force transmitted to a pump 31 to a turbine 32 via hydraulic fluid, a piston member 40 that is disposed between the front cover 20 and the mechanism 30 and delivers the driving force to an output shaft 200, a dynamic damper 60 that connects the piston member 40 and the turbine 32 via second damper springs 63, a lock-up clutch 50 that enables the front cover 20 and the piston member 40 to engage with each other, a turbine clutch 70 that enables the turbine 32 and the piston member 40 to engage with each other, and a control device 80 that controls the lock-up clutch 50 and the turbine clutch 70.